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Related Concept Videos

Lysosomal Hydrolases01:22

Lysosomal Hydrolases

Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
Sex-linked Disorders01:43

Sex-linked Disorders

Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
Huntington Disease l: Introduction01:21

Huntington Disease l: Introduction

Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show reduced penetrance,...
Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...

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Related Experiment Video

Updated: May 24, 2026

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)
10:47

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)

Published on: March 2, 2018

Juvenile neuronal ceroid lipofuscinoses.

Shiyao Wang1

  • 1People's Hospital, Peking University, Beijing, China. samuelwsy@163.com

Advances in Experimental Medicine and Biology
|March 14, 2012
PubMed
Summary

Juvenile neuronal ceroid lipofuscinoses (JNCL), a common pediatric neurodegenerative disease, lacks effective treatments due to limited understanding of its pathogenesis. Current strategies are insufficient to prevent premature death or improve patient quality of life.

Area of Science:

  • Neurology
  • Genetics
  • Pediatrics

Background:

  • Juvenile neuronal ceroid lipofuscinoses (JNCL) is the most prevalent form of neuronal ceroid lipofuscinoses (NCLs).
  • NCLs represent a group of severe pediatric neurodegenerative disorders.
  • Understanding JNCL is critical for addressing childhood neurodegeneration.

Purpose of the Study:

  • To comprehensively review the genetic and biochemical underpinnings of JNCL.
  • To elucidate the pathogenesis, clinical manifestations, and histopathological characteristics of JNCL.
  • To assess current diagnostic methods and therapeutic strategies for JNCL.

Main Methods:

  • Literature review of genetic and biochemical basis.
  • Analysis of pathogenesis and clinical features.

Related Experiment Videos

Last Updated: May 24, 2026

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)
10:47

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)

Published on: March 2, 2018

  • Evaluation of diagnostic and therapeutic approaches.
  • Main Results:

    • JNCL is characterized by specific genetic and biochemical abnormalities.
    • Pathogenesis involves complex cellular processes leading to neurodegeneration.
    • Current treatments are limited, and diagnostic tools require further refinement.

    Conclusions:

    • A thorough understanding of JNCL pathogenesis is lacking.
    • Existing therapeutic strategies are insufficient to overcome the disease.
    • Significant advancements are needed to conquer JNCL and improve patient outcomes.